Gas-stove.



PATENTED JULY "7, 1903.V

W. B. fcAssIDY.

' GAS STOVE. APPLIATION FILED NOVi 22,41902.

N0 MODEL.

ive. 733,005. t

UNITED STATES :Patented Juiy 7', 1903'.

PATENT OFFICE.w

GAS-STOVE.

srncIfFIoA'r forming part ef Lettere Patent Ne. p233,005, aetea July 7', 190s.

Application filed November 22, 1902. Serial No. 132,405. (No model.)

.To oLZZ whom t may concern.-

Be it known that I, WILLIAM B. CAssIDY, a citizen of the United States, residing at Columbus, in the county of Franklin and State ofOhio, have invented acertain new and useful Improvement in Gas-Stoves, of which the `following is a specication.

This invention relates to heating-sto ves,and is designed to provide an improved gas-stove which is particularly adapted for burning natural gas and is arranged to prevent the escape of gas and products of combustion into the room in which the stove has been set up.

`It is furthermore designed to provide for circulating the products of combustion over the top of the hot-air chamben'so as to `increase the heatedarea thereof.

Another object of the invention is to provide improvements in the combined smoke and hot-air box from which thesmoke and hot air are nallydischarged, whereby the smoke and products of combustion are directed immediately into the smoke-pipe andare prevented from escaping from the box into the adjoining room.

With these and other objects in view the present invention consists in the combination and arrangement of parts, as will be hereinafter more fully described, shown in the accompanying drawings,and particularly pointj ed out in the, appended claims, it being understood that changes in the form, proportion, size, and minor details may be made within the scope of the claims Withoutdeparting from the spirit or sacrificing any of the advantages `of the invention; 1

In thedrawings, Figure l is a front eleva- A tion of a gas-stove embodying the features of the present invention. Fig. 2 is a vertical longitudinal sectional viewV thereof, taken from front to back; and Fig. 3 is a transverse open, as shown, but may be closedwithout affecting the principles of the present invention. In the backu of the body are openings or perforations 3, arranged in a transverse troduction of fresh air to be heated. A suitable supply'pipe 4 passes through the base and beneath the bottom of the body and communicates with the burners 5, which project upwardly through the bottom of the stove.

These burners may be of any common or preferred type. forwardly bowed transverse partition or fireback 6 the interior of the body is divided into a front combustion-chamber 7 and a rear hotair chamber 8, the latter of which has communication with the external air throughthe medium of the series of openings 3 in the back of the stove-body. This partition rises from j the bottom of the stove-body, near the back thereof, and bows over toward the front and terminates short of the front-and also short of the top of the body, having a concave front side and a convex rear side, whereby it receives the full impact of the heat from the burners. The top of the hot-air chamber is closed by means of box-like compartment 9, the rear end of which rests upon a flange or lledge lO, projected inwardly from the back of the stove-body, while the open front of the box rests upon the top of the partition or fireback 6, the latter having an upstanding extension Il, terminating at its upper end in an angular flange 12,-forminga seat for the front ofthe box and producing a gas-tight joint between the partition and the box.

Over the open upper end of the stove-body is a cast-metal top 13, which isprovided with a pendent marginal flange 14, having its lower side grooved to receive the top edges of the body and to rest against the top of the box 9, whereby the latter is held in place. At the front of the box there is au upstanding transverse flange 15, which restsagainst the under side of the top 13 and against LAthe` rear side of the front portion of the `iiange I4, thereby to close the space between the box and the top of the stove. A pendent'` transverse flange 16, which forms the top of the front of the stove-body, extends downwardly to the bottom of the box 9 and is spaced in front thereof, so that the space between the front portion 16 and the open front of the box forms a flue to direct the smoke and other products.

of combustion into the box, and thereby pre- -seres near the bottom of the body for the in- By means of an upwardly and lOO vent the same from escaping into the room. Near the front of the box the top and bottom thereof are provided wit-h corresponding openings, between which extend a thimble or tubular jacket 17, it of course being understood that the openings are arranged in a series extending transversely across the box. Near the back of the box the top thereof is provided with a transverse series of openings 18.

Rising through the top of the stove, at the front thereof, are a plurality of hot-air pipes or tubes 19, the lower ends of which pass through'suitable openingsin said top and also pass through the corresponding thimbles or jackets 17, the said lower ends being open and in communication with the hot-air chamber ofthe body of the'stove. Similar smoke pipes or tubes 20 pierce the back portion of the top of the stove-body and are registered with the openings 18 in the back portion of the top of 'the box, so as to carry off the smoke and other products of combustion. The two sets of pipes rise to the same height and pierce the bottom of adistributing-box 21, which is supported by the pipes upon annular flanges or shoulders 22 thereon. From about the middle of the bottom of the box 21 a transverse partition 23 inclines upwardly and rearwardly, with its upper edge connected to the top of` the box, preferably at the intersection of the back and the top, thereby dividing the interior of the box into a front hot-ai r compartment 24 and a rear smoke-compartment 25. The top of the box is provided throughout with perforations 26, or it may be in the form of a grating or anyother preferred openwork construction to permit of the free escape of the heated air. A suitable smoke- -pipe 27 pierces the back of the box 21 and communicates with the smoke-chamber to carry-off the smoke and other products of combustion. A

From the foregoing description it will be understood that the air which enters through the openings 3 in the back of the stove-body and passes into the hot-air chamber 8 is heated by the flames from the burners,after which it rises through the pipes 19 into the distributing-box .21, from which it escapes into the adjoining room. The smoke and other products of combustion pass upwardly and enter the smoke-box 9, and hence circulate across the top of the hot-air chamber,

' whereby the heated area of the latter is materially increased. From the box 9 the smoke passesvupwardly through the pipes 2O and into the smoke-compartment of the box 21, and by reason of the partition 23 inclining across the tops of the pipes the smoke impinges against the partition and is thereby directed rearwardly tothe smoke-pipe 27 Without having a chance to circulate to any appreciable extent within the smoke-compartment, whereby leakage of the smoke and other products of combustion is reduced to the minimum. Furthermore, by having the i11- clined partition 23-connect with the top of the box at the intersection of saidtop' with the back there is one joint only instead of two at the top of the compartment, which is a further guard against leakage.

Having thus described the invention, what is claimed, and desired to be secured by Letters Patent, is-

1. In a gas-stove, the combination with a hollow body, of burners therefor, a hot-air and also in communication with the interior of the hot-air chamber.

2. In a gas-stove, the combination of a hollow body, a partition rising from the bottom of the body and dividing the interior thereof vinto a hot-air chamber and a combustion- 'chamber, burners within the combustionchamber, a smoke-box forming the top ofthe hot-air chamber and having an open front in communication with the combustion-chamber, the'top of the box having an opening at the back thereof, a smoke-pipe piercing the top of the stove and in communication with the opening in the top of the box, and a hotair pipe piercing the top of the stove, the top and bottom of the box and also in communication with the interior of the hot-air chamber.

3. In a gas-stove, the combinationfof a hollow body having a transverse ange upon the inner side of the back thereof and near the top of the stove, a partition rising from the bottom of the stove and dividing the latter into a combustion-chamber and a hot-air chamber, a smoke-box supported upon the flange and the partition, the front of the box being open and in communication with the combustion-chamber, and the top of the box having an opening at the back thereof, `a smoke-pipe piercing the top of the stove and in communication with the opening in the top of the smoke-box, and a hot-air pipe piercing the top of the stove and the top and bottom of the smoke-box and also in communication with the hot-air chamber.

4. In a gas-stove, the combination with a hollow body which is divided into a combustion-chamber and a hot-air chamber, and burners for the combustion-chamber, of a smoke-pipe rising from the top of the stove and in communication with the combustionchamber, a hot-air pipe rising from the top of the stove and in communication with the hot-air chamber, and a distribution-box supported upon the tops of the pipes and provided with a partition located between the pipes to divide the box into a hot-air compartment and a smoke-compartment, both compartments being provided with outlets.

5. In a gas-stove, the combination with a IIO hollow body which is divided into a combustion-chamber and a hot-air chamber, and burners for the combustion-chamber, of a smoke-pipe rising from the top of the stove and in communication with the combustionchamber, a hot-air pipe rising from the top of the stove and in communication with the hot-air chamber, a distribution-box supported `upon the open tops of the pipes, a partition within the box and between the pipes and also inclined across the top of the smoke-pipe, whereby .the box is divided into a hot-air comi partment and 'a smoke-compartment, the hotair compartment having an outlet, and a discharge-pipe piercing that side of the smoke- `compartment toward which the partition is upwardly inclined.

6. In a gas-stove, the combination with a hollow body which is divided into upright combustion and hot-air chambers, the top of the hot-air chamber terminating short of the top of the body and the space between the i top of said chamber andthe top of the stove forming a smoke-box with one open end in communication with the combustion-chamber, a smoke-pipe rising from the top of the stove and in communication with the smokebox, a hot-air pipe rising from the top of the stove and in communication with the hot-air chamber, a distribution-box supported upon the open` tops of the pipes, one of the latter being located at the front of the box and the other at the back thereof, the top of the box beingprovided with perforatons, a partition disposed within the distribution-box between the pipes and inclined upwardly and rearwardly to the top of the box and across the i open top of the smoke-pipe, and a dischargetal flange upon thevinner side of the rear wall of the hot-air chamber, of a smoke-box supi ported upon the ange and the top of the parso tition, the front of the box being open and in communication with the y combustion-chamber, the top of the box being provided with a transverse series of openings at the back thereof, and the top and` bottom of the box ,being provided with registered openings disposed in series transversely of the box, smokepipes piercing the back of the top of the stove and registered with the openings at the back of the box, hot-air pipes passing through the 6o openings in the top and bottom of the box at the front thereof and in communication with the hot-air chamber, a distribution-box supported upon the open tops of the pipes and provided with a perforate top, a partition located between the tops of the pipes .and inclined from the bottom of the distribution-box upwardly and rearwardly over the open tops of -the smoke-pipes dividing the box into a front hot-air compartment and a rear smokecompartment,the partition formingadeflector to direct the smoke from the smoke-pipes to the rear of the smoke-compartmen t, and a discharge-pipe piercing the back of the smokecompartment.

8. In a stove, the combination with a combustion-chamber and a hot-air chamber, of a distribution-chamber, a hot-air pipe leading from the hot-air chamber to the distributionchamber, a smoke-pipe leading from the come bustion-chamber to the opposite' side of the distribution-chamber, a partition within the distribution-chamber and between the two pipes and also inclined across the open end of the smoke-pipe to form a deflector for thel smoke emerging from the pipe, and a discharge-pipe piercing that wall of the distribution-chamber toward which the partition is inclined.

9. In a stove, the combination with a corn-` bustion-chamber and a hot-air chamber, of a hot-air pipe rising from the hot-air chamber,

a smoke-pipe rising from the smoke-chamber,` a distribution-box supported upon the openV tops of the pipes, a partition within-the box and between the pipes and dividing the box :into a hot-air compartment and a smoke-compartment, said partition being inclined up:

Wardly across the open top of the smoke-pipe to form a deflector, and a discharge-pipe piercing that upright wall toward which the partition is inclined. i

10. In astove, the combination with a front combustion-chamber and a rear hot-air chamber, of a smoke-pipe rising from the top of the combustion-chamber, a hotair pipe rising from the top of the hot-air chamber, a substantially horizontal distributionchamber supported upon the open tops of the pipes, the top of the box being perforated,a partition within the box and located between the pipes,

said partition dividing the box into a front hot-air compartment and a rear smoke-com-` partment and also being inclined upwardly and rearwardly across the open top of the smoke-pipe to form a delector for the smoke emerging therefrom, and a discharge-pipe piercing the back of the smoke-compartment. WILLIAM B. oAssrDY. e

i Inu presence of- C. C. SHEPHERD, A. L. Pnnnrs.

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